Preventive Maintenance Edge/Edge Blanket
4-16
4.5 Annual PM
(2000 hours)
WARNING
Do not repair or correct any
of these conditions without
reading and understanding
the Repair chapter.
Only qualified personnel
should troubleshoot and
repair this unit.
Make sure the power is
turned OFF at the main
disconnect switch.
Follow lockout/tagout
procedures approved for
your site. Follow local
regulations. Failure to do so
could result in serious injury.
Check All Electrical Connections
Over time, the continued heating and cooling
process can cause electrical connects to become
loose.
Required Tools
thin, slotted screwdriver
Perform only when the unit is OFF
with power disconnected.
Turn power OFF at the main disconnect
switch.
Open the right endframe and the electrical
box doors.
Test each wire’s connection by gently
pulling on it.
Tighten any loose connections.
Close both doors.
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